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Finding the Fourth Proportional to 308,589.96, 425,834.04 and 172,600.32

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Solution

The fourth proportional to 308,589.96, 425,834.04 and 172,600.32 is: 238,177.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,589.96 : 425,834.04 = 172,600.32 : x
  2. Step 2: Convert to fraction form
    308,589.96/425,834.04 = 172,600.32/x
  3. Step 3: Cross multiply
    308,589.96x = 425,834.04 × 172,600.32
  4. Step 4: Simplify right side
    308,589.96x = 73,499,091,570.89
  5. Step 5: Solve for x
    x = 73,499,091,570.89/308,589.96
  6. Step 6: Final answer
    x = 238,177.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.